Window-blind.



No, 708,'6l8. Patented-sept 9, |902.

w. n. unless.

WINDOW BLIND.

(Application med Feb, 5, 1902.)

(No Model.) 2 Sheets-Sheet I.`

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UNITED STATES v WARREN RRIGGs, oF-sTRATEoRD, CONNECTICUT.

PATENT OFFICE.

WINDOW-BLIND.

SPECIFICATION forming part of Letters Patent No.v 708,618, dated SeptemberQ, 1902.

Application filed February 5, 190.2. Serial No. 92,684. (No model.)

To a/ZZ whom it may con/cern,.-

Be it known that I, WARREN R. BRIGGs, a citizen of the United States, residing at Stratford, in the county of Faireld and State of Connecticut, have invented certain new and useful Improvements in Window-Blinds; and

. I do hereby declare the following to be a full,

clear, and exact description' of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to Window-blinds, and has for its objects readiness of use, efficiency, and simplicity, as Will be apparent from a more detailed recitation of the objects of my invention, which will be hereinafter given.

With these ends in view my invention consists in certain details of construction and; combination of parts, such as will be hereinafter fully set forth and then specifically bev designated by the claims.

In the accompanyingr drawings, which form a part of this application, Figure 1 is an inside elevation of a pair of shutters equipped with my improvement; Fig. 2, a broken in-v n* parts in the several figures of the drawings.

sockets 6 and the ends of the recesses 5 are at regular intervals in their respective strips and are opposite each other.

`7V represents theblind-slats, the ends of each slat being provided with ferrules 8,

While through the ends of these ferrules pins v9 are driven into the slats, so as to aord suitable trunnions 10 for pivoting the slats 'within the strips 3 4f. In one end of each slat is formed an elongated recess 11, which extends through the ferrule into the slaty itself for the purpose presently to be explained. The blind-slats are preferably assembled in position by simply inserting the trunnions at one end within the sockets 6 in the strip 4: and then inserting the trunnions at the other end within the recesses 5 in the strip 3, as will be clear by reference to Figs. 2, 3, and 4. It will thus be'readily understood that the blind-slats areasse'mbled in position independent of each other, and therefore it will be noted that the slats may be independently removed or replaced for any obvious purpose.

l2 is what Iterm a lock-strip, preferably made of metal and secured to the shutter at the side of the opening nearest the strip 3, this lock strip 12 being provided with a flanged portion 13, which extends inwardly in close proximity to the trunnions of the slats after their assembly, the object of this flanged portion being of course to lock the trunnions in the recesses 5 and to permit of a minimum play. If a plain look-strip were provided, it would be possible for the trunnions of the slats to have considerable move- 'ment throughout the recesses 5, and the flanged construction is provided merely to hold the trunnions as steadily as they are held at the opposite ends within the sockets 6. The ends of the slats that `are provided with the recesses 11 are close to the strip 4, and I provide an operating-bar 14 at this side of the shutter for the purposeV of operating these slats in unison. This operating-bar is provided with elongatedv slots l5, through which screws 16 .pass directly into the shutter, so that it will be clear that this bar will be held in position by this arrangement of screws'and slots and at the same time be capable of a vertical movement. Extending from the inner edge of this bar 14: are lugs IOO 17, which project within the various recesses 11, and it will be clear, therefore, that when this bar 14 is moved up and down the blindslats will all be operated in harmony. The screws 16 may bear with sufficient friction against the bar 14 so that the latter will remain in any desired vertical adjustment, and

therefore the blind-slats may be turned to any desired angle or position, and they will remain in such position without the aid of any auxiliary locking devices; but special locking-buttons 18, secured to the shutter and capable of turning freely, may be provided, if desired, which buttons when swung into operative position will be wedged against the bar 14 and hold the latter positively in any adjustment. In case a fixed position of the blind-slats is desired for any length of time this may be effected without the use of the lock-buttons by simply driving the screws 16 firmly against the bar 14. The operatingbars 14 may be turned up at the bottom, so as to provide suitable lifts 19 for convenience in operation, or special lifts 2O may be secured directly to these bars.

The strips 3 4 may be secured within the sides of the opening in the shutter-frame by screws or in any other way, or said strips may form a part of a separate frame, which latter maybe hinged to the shutter, as shown, at the lower part of the construction illustrated at Fig. 1. At the lower half of Fig. 1 the strips 3 4 form the sides of a separate frame 21, and the slats are retained and operated by the strip 12 and bar 14 in `precisely the same manner as has been hereinbefore explained, while the frame is hinged at 22 to the shutter. In this construction a rabbet 23 is formed around the shutter-opening within which the frame closes, and any suitable and ordinary fastening 24, may be provided to hold the frame in closed position.

I do not in the present application desire to be understood as basing any claim on the blind-Slat frame hinged or detachably secured to the shutter-frame,since this feature is made the subject of a separate application for patent iiled on even date herewith under Serial No. 92,686, and I have herein shown and referred to this construction merely to call attention to the fact that it is immaterial whether the side strips 3 4 are stationary in the shutter or whether they form part of a separate movable frame.

Any suitable screen 26 may be secured to the outside of the shutter, if desired.

By removing the Lock-strip 12 one or more of the slats may be removed or replaced by other slats, and in this connection attention is called to the fact that the painting of the blind-screens is greatly facilitated.

The operating-bar may, if desired, be constructed, as shown in Fig. 7, with a iianged edge 25, from which latter the lugs 17 project into the 'recesses 11 just as heretofore described; but the only advantage of this modified construction is that it gives a little better finish and harmonizes with the construetion of the lock-strip 12.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a Window-blind, the combination of the shutter-frame, having at opposite sides of its opening sockets and inclined open recesses which constitute bearings,the blind-slats having trunnions at both ends adapted to fit within said bearings and provided with elongated recesses in one end of each slat, the locking-strip secured to the shutter-frame in close proximity to the trunnions in said recess-bearings, and the operating-bar adjustably secured to the shutter-frame and having lugs which project within said recesses, substantially as set forth.

2. In a window-blind, the combination of the shutter-frame having the sides of its opening provided with inclined open recesses and sockets, the blind-slats having at their ends metal ferrules and trunnions which latter are adapted to fit within said sockets and recesses, while one end of each slat is provided with an elongated recess, means for locking the trunnions as against displacementin said recesses, and a vertically-adjustable bar carried by the shutter and having lugs which vengage with said recesses whereby the blind-slats may be operated in harmony, substantially as set forth.

3. In a window-blind, the `combination of the sockets and inclined open recesses which form bearings at opposite sides of a suitable frame, the independent blind-slatsprovided with trunnions which rest within said bearings, oue end of each slat having an elongated recess, the lock-strip secured to said frame and extending in close proximity to the trunnions in said recesses, and the operating-bar adjustably secured to said `frame and provided with lugs which project within said recess, substantially as set forth.

4. In a Window-blind, the socket and inclined open recess-bearings arranged at `the opposite sides of a suitable frame, the independent slats provided with trunnions which rest within said bearings, and means operatively connected with the slats at one side for turning said slats in unison, substantially as set forth.

5. In a window-blind, the combination of the shutter-frame supporting at opposite sides of its opening sockets and open recess-bearings, the blind-slats having metal ferrules on their ends and provided with trunnions which rest within said bearings, and an operating bar suitably guided and capable of vertical movements and loosely connected with said slats at one side, substantially as set forth.

6. In a Window-blind, the combination of the shutter-frame having on oppositesides of its opening sockets and open recesses, the blind-slats provided at each end with metal ferrules and trunnions which latter extend within said sockets and recesses, the elongated IOO IIO

recesses in one end of each slat, the lockingstrip secured Ato the shutter and adapted to confine the trunnions at one side of the slats within said open recesses, the operating-bar having lugs which engage said recesses and provided with elongated slots, and screws eX- tendng through said slots into'the shutter` whereby said bar is guided and is capable of a' free Vertical play, substantially as set forth.

7. In a Window-blind, the combination of the socket and inclined open recess-bearings arranged at opposite sides of a suitable frame,

' theindependent blind-slats vprovided with trunnions whichvrest Within said bearings, means for confining said trnnnions Within the' 15 recess-bearings, and an operating-bar adjustably secured at one side of the frame and loosely connected with the ends of the slats, substantially as set forth.

In testimony whereof I aflx my signature zo in presence of two Witnesses.

WARREN R. RRIGGs.

Witnesses:

F. W. SMITH, Jr.,` M. T. LoNGDEN. 

